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What does the ADIRU combine?

  • A

    It is a commercial term for a combined navigation system.

  • B

    ADI and IRS.

  • C

    ADC and IRS.

  • D

    ADS and IRS.

The ADIRU (Air Data/Inertial Reference Unit) integrates both the Air Data Reference (ADR) system and the Inertial Reference (IR) system.

The ADR provides essential data such as:

  • Altitude,
  • Airspeed,
  • Mach number,
  • Angle of attack,
  • Temperature, and
  • Overspeed warnings.

Meanwhile, the IR component delivers information on:

  • Attitude,
  • Flight path vector,
  • Track, heading,
  • Accelerations,
  • Angular rates,
  • Ground speed, and
  • Aircraft position.

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